Need a replacement catalytic converter for your 1977 Porsche 924? MagnaFlow offers high-quality catalytic converters engineered for 1977 Porsche 924 sub-models and engine sizes. We combine efficient design and state-of-the-art manufacturing to meet or exceed required emissions standards. Select your 1977 Porsche 924 requirements and state vehicle registration to buy the best 924 catalytic converter online that fits your '77 924 and meets your state’s emissions compliance.